Devices and accessories for electric armored cables and stuffing tubes

ABSTRACT

Devices and accessories in the form of tool means and associated equipment for the installing and servicing, including emergencywise preparation, of electric armored cables, in the form of a circular T-w wrench, a safety shield with accurate cutter grooves in a combined ring-cutter, which limits the depth in cutting the outer interstices of shielding or layers of insulation if required, and said devices also may be affixed and grouped into a piece unit for storing and ever-ready utility.

United States Patent 2,450,883 10/1948 DAmico Inventor Paul M. D'Amico2709 S. 12th St., Philadelphia, Pa. 19146 Appl. No. 772,179 Filed Oct.31, 1968 Division of Ser. No. 502,048, Oct. 22, 1965.

abandoned. Patented May 25, 1971 DEVICES AND ACCESSORIES FOR ELECTRICARMORED CABLES AND STUFFING TUBES 3 Claims, 13 Drawing Figs.

US. Cl 29/203 Int. Cl H05k 13/00 Field of Search 29/203, 203

(H), 33, 203 (DT), 203 (D), 203 (DTS); 30/90.190.8; 81/9.5; 285/161References Cited UNITED STATES PATENTS 2,526,717 10/1950 Weisberg...'29/203(X) 3,114,277 12/1963 Clendenin 30/90.1 3,130,493 4/1964 Scudieri81/9.5 3,246,381 4/1966 Etchison, Jr. et al. 29/33 3,264,860 8/1966 Herb29/203 3,319,324 5/1967 Keller 29/203 3,376,627 4/1968 Sitz 29/2033,484,921 12/1969 Ziegler, Jr 29/203 Primary Examiner 'l'homas H. EagerABSTRACT: Devices and accessories in the form of tool means andassociated equipment for the installing and servicing, includingemergencywise preparation, of electric armored cables, in the form of acircular T-w wrench, a safety shield with accurate cutter grooves in acombined ring'cutter, which limits the depth in cutting the outerinterstices of shielding or layers of insulation if required, and saiddevices also may be affixed and grouped into a piece unit for storingand everready utility.

' PATENTEI] HAYZ 5 I97! IN VEN T OR PMENWEB wrzslam' SHEET 2 BF 2DEVICES AND ACCESSORIES FOR ELECTRIC ARMORED CABLES AND STUFFING TUBESThis application is a division of my copending application Ser. No.502,048, filed Oct. 22, 1965, now abandoned.

Tool means and accessories for preparing and servicing of electricarmored cables as widely used in both marine and field areas when makingrigidly specified connections are some of the many problems as describedin the former patent granted to 'me on Oct. I2, 1948, being U.S. Pat.No. 2,450,883, and also described in my abandoned application Ser. No.502,048, filed Oct. 22, I965, entitled Stuffing Tubes and Stuffing TubesUniversal, respectively.

BRIEF DESCRIPTION The invention relates to useful tool means and devicesor fittings for the useful purpose of dressing, preparing, andassembling armored electric cables into stuffing tubes, and for meetingstandards and requirements in termination, scaling and locking devices.

DETAILED DESCRIPTION The inventions, further outlined, are in theconstruction ofv devices and accessories as well as associatedequipment,

I which take the form of combination tool means with added new anduseful features in an assembled enclosure containing storing and sealingfacilities. A circular tee wrench withspanner pins at its base isapplied to a related threaded bushing and combined with a safetyshield-ring cutter and a top hat cable end seal for the end usage ofarmored electric cables and the preparation in dressing for installingand servicing thereof, which will be further understood from thefollowing description and drawings:

FIG. 1 is a view in side elevation, which illustrates a completelyassembled and enclosed tool means, being a circular tee wrench withadded fittings, when stored or in everready position as a utility whenrequired, and

FIG. 2 is a view in side elevation, with a portion cut away for clarityof illustration, showing additional tool means and accessories withinits compartment, with the inclusion of a upper spaced cavity which alsostores a slideable cutter-ring which is shown mounted in FIG. 1, and IFIG. 2A is a fragmentary exploded view of a new and useful cable endseal, with portions cut away for clarity of illustration, in unlimitedlength and ring-formed base for insertion between interlocking glandring assemblies as is shown in DAmicos old or new applications entitledStuffing Tubes. Said seal is also termed a top hat cable end seal and isin reality a prepack, and

FIG. 3 is a side elevational view illustrating another tool means beinga safety shield combining stavelike fingers to wraparound base forfolding underneath cable armor interstices being prepared for trimmingwith cutter-ring in everready position, and

FIG. 4 is a side elevational view illustrating slideable ring cutterwith calibrated grooves having the proper depth as would be used witheither hacksaw or electrician's knife and would be useful for cablearmor interstices, or additional layers of insulation if so desired whensetting aside each severed layer, and

FIG. 4A is a sectional view to indicate said cutter-ring groove to placeemphasis on limiting the cutting of said layers, and

FIG. 5 is a view in side elevation illustrating an armored electriccable about to be prepared for cutting of said interstices with saidcutter-ring in position, and

FIG. 6 is a side elevational view with said cutter-ring in position, andan exploded view of said cable interstices about to be accuratelytrimmed for said cable dressing, and

FIG. 7 is a side elevational view, illustrating said safetyshield snuglyplaced in position underneath said armor with cutter-ring overlapped forsaid trimming purposes, and

FIG. 8 is a fragmentary view, with portions cut away for clarity ofillustration to indicate actual positioning of said interstices as beingplaced relatively, and

FIG. 8A is a fragmentary view of combined and modified interlockinggland ring arrangement with said interstices flared and purposelywrinkled with male and female features thereof, and

FIG. 9 is a side elevational view with a portion cut away for clarity ofillustration, showing complete assembly ofa stuffing tube, as shown inmy abandoned application, and

FIG. 9A is a side elevational view, with a portion cut away for clarityof illustration, which shows a circular tee wrench positioning athreaded bushing snugly into lower innards of said tube base, withhandle also in position to thus aid in said operational features, andFIG. 9A also indicates their relationship.

A preferred embodiment of these inventions so interrelated and combinedis illustrated in FIG. 1 wherein the reference numeral 39 denotes acircular body having spanner pins 39A, and at its upper portion holes40A are provided for positioning handle 40 which is'also upperlyfollowed by and in stored position a cutter-ring 39C with itsspecialgrooves 39CC, above which is located the handgrip of safety-shield 42.Said handgrip as a part thereof is numbered 398. FIG. 2 shows the deviceor tool-means 39 as completely storing in its cavity a key-handle 40,and safety-shield 42 with its base piece 42A. An inner storage chamber39AA stores additionally another important device, fitting or facilityin the form of a top hat cable end seal which is indicated by arrows 3and 4 and numeral 39EE as a one piece unit with no limit as to thelength which may be required for varying instances, especially inemergencies which may come about, said length being shown by brokenlines in FIG. 2A.

While FIG. 3 shows said safety shield 42 as an entire assembly inrelationship with FIGS. 1 and 2 conjunctively indicating the combinedsections and parts, such as upper group 43 with handgrip 39B,cutter-ring cavity 39CC, fingered stavelike fan section 42 with itssupporting base piece 42A, in position under armor sheath 22 whichfollowed cutter-ring cavity 39C, while at the upper extremity of thecable is an impervious sheath 2! with conductors 19 with insulation 20.FIG. 4 shows cutter-ring39C which is slit for slideability as to varyingsizes, and calibrated grooves 39CC which limits depth of trimming ofinterstices or layer of insulation if need be, both arrows 9A indownward position indicate relationship with groove 39CC and saidcutter-ring 39C, in FIG. 4A.

FIG. 5 shows armored cable 21 with shield 22 and cutterring 39C in firstoperation, while FIG. 6 shows second operation with said pieces, wherebywaste has been discarded. FIG. 7 shows third operation with saidsafety-shield 42 and handgrip 43 in,position conjunctively withcutter-ring ready for accurately trimming said interstices, whereas itmust be noted that said stavelike fingers are of hardened materials suchas stainless steel also that the cutter-ring is made of hardenedmaterials included in that category and it must also be noted thatelectricians knives are not intended to keep and maintain sharp edges,because of possible knicks to cables, and interstices 22A are usually oflight materials such as aluminum. FIGS. 8 and 8A show the importance ofwrinkled and flared interstices for being properly placed within thegrasp of said interlocking rings 15 and 16 which are pressured in placeby followup gland nut 23, as shown in FIG. 9 indicating completeassembly of a stuffing tube, which is also shown in FIG. 1 of myabandoned application. Body 10 encases cable 22 with innards 19 beingconductors, which are covered with insulation 20, and an impervioussheath 21. The cutaway view in FIG. 9 shows a threaded bushing 32 placedat threaded base 30, a rounded base 17 allowing welding or solderingwhen used as a bulkhead tube, but when used as a terminal tube seal 31at cavity 28 is applied for further sealing cavity 33 conjunctively withcavity 13 with seal 26, which is upwardly followed by inner dimpledpacker-sealer 12 which surrounds said impervious sheath and periphery.The upper chamber shows a limit-stop 14 followed by gland-rings l5 and16 with interstices 22A affixed therebetween, and gland nut 23 exertsneeded pressure when required. A large locknut 29 and a ring 29A areused for purposes such as in walls or bulkheads. FIG.

another tubular housing member having a storage area, a handle elementfor threading the tubular housing members together and stored within thestorage area, a cutter-ring element and safety-ring for trimming theends of the sheath of the cable stored within the storage area, and eachof said elements being suitable to facilitate the assembling andsecuring of said electrical components of said sheathed cable andterminal.

2 Apparatus as set forth in claim I, wherein an additional elementstored is a cable end seal.

3. Apparatus as set forth in claim 1, wherein said cable end seal is inthe shape ofa top hat.

1. Apparatus for assembling electrical components of a sheathed cableand interchangeable terminal, comprising a tubular housing member havinga threaded connection with another tubular housing member having astorage area, a handle element for threading the tubular housing memberstogether and stored within the storage area, a cutter-ring element andsafety-ring for trimming the ends of the sheath of the cable storedwithin the storage area, and each of said elements being suitable tofacilitate the assembling and securing of said electrical components ofsaid sheathed cable and terminal.
 2. Apparatus as set forth in claim 1,wherein an additional element stored is a cable end seal.
 3. Apparatusas set forth in claim 1, wherein said cable end seal is in the shape ofa top hat.